Former co-stars and famous fans are paying tribute to comedian and actor Bob Newhart, who died Thursday at age 94.

The comedy world lost a legend on Thursday after the passing of Bob Newhart.

Bob Newhart has died at age 94.

Kevin Hart rose from the open mics and comedy clubs of his native Philadelphia to become one of his country’s most recognizable performers.

Ginnie Newhart, who was married to comedy legend Bob Newhart for six decades and inspired the classic ending of his “Newhart” series, has died.

Peter Scolari, who appeared on the TV series “Newhart” and Girls," has died.

If leaving the storied role of “The Tonight Show” host mandates retirement, Jay Leno ignored the memo.